Shoe stacker



FIG. 1 is a front perspective view of a shoe stacker showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is another perspective view thereof, showing the shoe stacker while in use, with another shoe stacker engaged;

FIG. 9 is another perspective view thereof, showing the shoe stacker while in use, with two other shoe stackers engaged; and,

FIG. 10 is another perspective view thereof, showing the shoe stacker while not in use, with three other shoe stackers stacked together.

The broken lines are shown for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a shoe stacker, as shown and described. 